Date: Fri, 15 Oct 2021 16:04:48 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 259152] [iscsi] ExpDataSN mismatch in SCSI Response (unable to connect or authenticate to OCI oracle iscsi block devices) Message-ID: <bug-259152-227-iheXAwtJCY@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-259152-227@https.bugs.freebsd.org/bugzilla/> References: <bug-259152-227@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259152 John Baldwin <jhb@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jhb@FreeBSD.org, | |mav@FreeBSD.org, | |trasz@FreeBSD.org --- Comment #5 from John Baldwin <jhb@FreeBSD.org> --- Please redo the packet capture with '-s 0'. The SCSI response PDUs are in = the same packet as the Data-In but can't be seen in WireShark since the captured packets are truncated. Given the small number of packets involved, using '= -s 0' should be ok without risk of dropping packets. Note that since there is a Data-In, the ExpDataSN field should be 1 in the = SCSI Response. It is a count of the Data-In PDUs sent in the reply to the origi= nal request prior to the SCSI Response PDU that closes it: https://datatracker.ietf.org/doc/html/rfc7143#section-11.4.8 The error messages in comment #4 suggest a completely garbled connection, e= .g. if there are extra bytes in the stream that cause the client to read PDU headers at the wrong offset. 'PDU 0x0' means that it thinks the opcode of = the PDU is 0 (NOP-Out). However, NOP-out PDUs are only sent by the initiator (client), not the target. I wonder if OCI is using AHS (which isn't generally supported in FreeBSD's iSCSI stack)? A full pcap might help. Oh, also, the LoginRespone shows 'iSCSIProtocolLevel=3DNot Understood" in t= he reply. That may be ok though as that just means we can't use features from= RFC 7144 I think (reading in RFC 7144 which defines version 2 where as 7143 is version 1). --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-259152-227-iheXAwtJCY>